Blackjack is a sativa dominant cross between Jock Horror and Black Domina, having a high THC content. It is well suited for medical purposes. The plant can grow in any growing conditions and usually reaches an average height. After 63-77 days, a crop of 400-500 g/m2 appears. Large buds have a sharp aroma. The strain gives a powerful effect that will last for a long time. It is often used to relieve pain, relieve stress and depression. The taste of the smoke is spicy, pine and earthy, with citrus hints. This is a good daytime strain, giving a moderate effect of relaxation and talkativeness. This variety does not cause paranoia and anxiety. It is deservedly loved by the medical marijuana community.